150 MAINE AGRICULTURAL EXPERIMENT STATION. I913. 



bars from a small steam boiler, which had been discarded and 

 thrown on the dump heap. These were set close together and 

 held firmly in place when the cement hardened. They form the 

 grate on which the material to be incinerated is thrown. These 

 old boiler grate bars, besides costing nothing, had another ad- 

 vantage ; namely that of their thickness and weight. When they 

 become thoroughly heated from the fire below they will hold the 

 heat for a considerable time charring and burning the animal 

 material above. 



Fig. 60. Photograph of crematory described in text. Note cement 

 base, with opening in front into fire box ; galvanized iron cremating 

 box on top ; cover of cremating box. 



The incinerating chamber proper was made from galvanized 

 iron by a local tinsmith. This consists of a rectangular box 



Length 2 feet, 2 inches ; 



having the following dimensions 



